Optical connection member, optical connector, and optical fiber having connector

An optical fiber with a connector comprising:

• an optical connector having an optical connection member used for optical connection of a plurality of optical fibers and a housing holding the optical connection member thereinside;
• and
• the plurality of optical fibers attached to the optical connector,
• wherein the optical connection member includes a first end surface facing another optical connection member at the time of the optical connection, a second end surface different from the first end surface, and a holding portion holding the plurality of optical fibers,
• the holding portion is provided with a plurality of holding holes which are opened in the first end surface, extend from the first end surface in a first direction intersecting with the first end surface, and hold the plurality of optical fibers,
• the first end surface includes a first area, a second area, and a third area which are sequentially arranged along a second direction intersecting with the first direction,
• openings of the plurality of holding holes are arranged in a row in the second direction in the first area and the third area,
• a center interval between the openings mutually adjacent through the second area is larger than a center interval between the openings mutually adjacent in the first area and the third area,
• one end portions of the plurality of optical fibers are held in the holding holes in the holding portion,
• the plurality of optical fibers is divided into two parts in the inside of the optical connection member,
• the plurality of optical fibers is integrated at the second end surface, and
• a part from which the division of the plurality of optical fibers starts is located inside the optical connection member.